Method and apparatus for switching data in communication system
a communication system and data switching technology, applied in the field of data switching devices and methods, can solve the problems of increasing manufacturing costs, occupying a large chip area of electronic circuits, and increasing hardware design complexity, so as to reduce chip area and hardware complexity, simplify the circuit, and reduce hardware cost
Inactive Publication Date: 2008-08-21
NAT CHIAO TUNG UNIV
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Benefits of technology
[0007]Another purpose of the present invention is to provide a method and apparatus for switching data in communication system in order to simplify the circuit and reduce the hardware cost.
[0008]Yet another purpose of the present invention is to provide a method and apparatus for switching data in communication system that reduces the chip area and the complexity of hardware.
Problems solved by technology
Therefore, in conventional data switching device, the shifter circuit design in dealing with fixed size of coding dimensions which the architecture includes one fixed size shifter circuit and perform only single coding dimension, that is, it is not allowed to use the same shifter circuit to shift source data according to multiple sizes of coding dimension.
The electronic circuit will occupy pretty large chip area and the complexity of hardware design will be relatively increased too.
Furthermore, the manufacturing cost is relatively increased too.
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[0020]A method and apparatus for switching data in communication system is provided in the present invention. What makes it different than conventional data switching device is, for the data switching device of the present invention, under the communication specification supported by the communication system, the source data can be shifted according to all sizes of coding dimensions by such a data switching device; therefore the limitation issues of corresponding treatment in conventional data shifter is that shifts the source data according to one fixed coding dimension only. Note that, data switching device of the present invention uses only one size shifter circuit; therefore, the space and chip area used to implement the electronic circuit design is correspondingly much smaller than the conventional data switching device or a multi-size shifter in the multi-sizes of coding dimension, and of course, the complexity of electronic circuit design is relatively lower.
[0021]FIG. 1 show...
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A method and apparatus for switching data in communication system which comprises of mainly a conversion circuit to receive the source data possessing in a real coding dimension and covert it to converted the data possessing in a tolerable coding dimension; the judgment bits are set in the converted data to designate the data as source data or not. Later on, shifter circuit is used to shift the converted data in certain amount and generates a shifted data; meanwhile, the right side and left side of shifted data are used to start acquiring the real coding dimension to be used respectively as a first data and a second data. Finally, a comparison and selection circuit is used to compare the corresponding judgment bits in the first and the second data and to output an output data, wherein output data is source data with the above-mentioned amount of shift.
Description
FIELD OF THE INVENTION[0001]The present invention relates to a data switching device and method, it specifically relates to a method and apparatus for switching data in communication system.BACKGROUND OF THE INVENTION[0002]In a communication system, data switching device is needed to convert a source data transmitted from the previous circuit into an output data to be used by subsequent circuit for data processing. Data switching device is just like a translation system between previous circuit and the subsequent circuit, the previous circuit needs a data-switching device to convert source data into output data that can be controlled by the subsequent circuit before data processing can be performed by the subsequent circuit. Therefore, it is indispensable no matter in the transmitter or the receiver of communication system. Here, the output data is generated by shifting the source data. Note that, the communication specification it supports has to be decided and needs to match the a...
Claims
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CPCH04L12/4625
Inventor LEE, CHEN-YILU, JR-HAULIN, CHIEN-CHINGCHANG, HSIE-CHIAHSU, YAR-SUN
Owner NAT CHIAO TUNG UNIV